Neuro-control with online adaptation for a Knee-Ankle-Foot-Orthosis
نویسندگان
چکیده
منابع مشابه
Newly designed computer controlled knee-ankle-foot orthosis (Intelligent Orthosis).
The authors have developed a knee-ankle-foot orthosis with a joint unit that controls knee movements using a microcomputer (Intelligent Orthosis). The Intelligent Orthosis was applied to normal subjects and patients, and gait analysis was performed. In the gait cycle, the ratio of the stance phase to the swing phase was less in gait with the knee locked using a knee-ankle-foot orthosis than in ...
متن کاملA new hip-knee-ankle-foot sling: kinematic comparison with a traditional ankle-foot orthosis.
In this study, we performed a kinematic analysis of a new, low-cost sling for the lower limb, compared to a common ankle-foot orthosis (AFO). Gait with no orthosis, with the AFO, and with the new sling was analyzed in one hemiplegic subject. Both the AFO and the sling reduced the mean angle and ROM (range of movement) of the ankle and the vertical displacement of the center of mass. The sling, ...
متن کاملNeuromechanical adaptation to hopping with an elastic ankle-foot orthosis.
When humans hop or run on different surfaces, they adjust their effective leg stiffness to offset changes in surface stiffness. As a result, the overall stiffness of the leg-surface series combination remains independent of surface stiffness. The purpose of this study was to determine whether humans make a similar adjustment when springs are placed in parallel with the leg via a lower limb orth...
متن کاملController Design for a Stance-control Knee-ankle-foot Orthosis based on Optimization Techniques
Design of active orthosis is a challenging problem from both the dynamic simulation and control points of view. The redundancy problem of the simultaneous human-orthosis actuation is an interesting exercise to solve concerning the analytical and computational cost effectiveness. The physiological static optimization approach tries to solve the actuation sharing problem. Its objective is to quan...
متن کاملDesign and functional evaluation of a quasi-passive compliant stance control knee-ankle-foot orthosis.
In this paper, we present the mechanical design, control algorithm, and functional evaluation of a quasi-passive compliant stance control knee-ankle-foot orthosis. The orthosis implements a spring in parallel with the knee joint during the stance phase of the gait and allows free rotation during the swing phase. The design is inspired by the moment-angle analysis of the knee joint revealing tha...
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ژورنال
عنوان ژورنال: Frontiers in Computational Neuroscience
سال: 2012
ISSN: 1662-5188
DOI: 10.3389/conf.fncom.2012.55.00116